Dodge Ram Truck 1500-2500-3500. Manual — part 1076

P0336-CRANKSHAFT POSITION (CKP) SENSOR SIGNAL (CONTINUED)

2.

(K24) SIGNAL CIRCUIT OPEN

Disconnect the ECM harness connectors.

Disconnect the CKP sensor harness connector.

Check connectors - Clean/repair as necessary.

Measure the resistance of the (K24) signal circuit between the ECM
harness connector and the CKP sensor harness connector.

Is the resistance less than 10 ohms?

Yes

>> Go To 3

No

>> Repair the open (K24) signal circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

3.

(K853) 5-VOLT SUPPLY CIRCUIT OPEN

Measure the resistance of the (K853) 5-volt supply circuit between the
ECM harness connector and the CKP sensor harness connector.

Is the resistance less than 10 ohms?

Yes

>> Go To 4

No

>> Repair the open (K853) 5-volt supply circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

9 - 1226

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

DR/DH

P0336-CRANKSHAFT POSITION (CKP) SENSOR SIGNAL (CONTINUED)

4.

(K975) RETURN CIRCUIT OPEN

Measure the resistance of the (K975) return circuit between the ECM
harness connector and the CKP sensor harness connector.

Is the resistance less than 10 ohms?

Yes

>> Go To 5

No

>> Repair the open (K975) return circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

5.

(K24) SIGNAL CIRCUIT SHORTED TO (K975) RETURN CIRCUIT

Measure the resistance between the (K24) signal circuit and the
(K975) return circuit in the sensor connector.

Is the resistance greater than 100k Ohms?

Yes

>> Go To 6

No

>> Repair the short circuit or replace the engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

DR/DH

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1227

P0336-CRANKSHAFT POSITION (CKP) SENSOR SIGNAL (CONTINUED)

6.

(K853) 5-VOLT SUPPLY CIRCUIT SHORTED TO (K975) RETURN CIRCUIT

Measure the resistance between the (K853) 5-volt supply circuit and
the (K975) return circuit in the sensor connector.

Is the resistance greater than 100k Ohms?

Yes

>> Go To 7

No

>> Repair the short circuit or replace the engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

7.

(K24) SIGNAL CIRCUIT SHORTED GROUND

Measure the resistance between the (K24) signal circuit and ground.

Is the resistance greater than 100k Ohms?

Yes

>> Go To 8

No

>> Repair the short circuit or replace the engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

9 - 1228

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

DR/DH

P0336-CRANKSHAFT POSITION (CKP) SENSOR SIGNAL (CONTINUED)

8.

(K853) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND

Measure the resistance between the (K853) 5-volt supply circuit and
ground.

Is the resistance greater than 100k Ohms?

Yes

>> Go To 9

No

>> Repair the short circuit or replace the engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

9.

(K24) SIGNAL CIRCUIT SHORTED TO (K853) 5-VOLT SUPPLY CIRCUIT

Measure the resistance between the (K24) signal circuit and the
(K853) 5-volt supply circuit in the sensor connector.

Is the resistance greater than 100k Ohms?

Yes

>> Go To 10

No

>> Repair the short circuit or replace the engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

DR/DH

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1229